Interrelation between lattice structures and polarization in high Curie temperature piezoelectric Na0.5Bi4.46Ce0.04Ti4-Co O ceramics

Enhanced electrical properties of Cr2O3 addition NBT‐based high‐temperature piezoelectric ceramics

“…In this study, Cr 2 O 3 was added to obtain a (Na 0.5 Bi 0.5 ) 0.95 Ca 0.05 Bi 4 Ti 4 O 15 + 0.2% Cr 2 O 3 material, and as expected, an excellent piezoelectric coefficient d 33 of 29 pC/N and a high T C of 655°C were achieved. This newly designed NBT‐based piezoceramic exhibits outstanding performance compared to most NBT‐modified materials as shown in Figure 1 10–34 . The effect of Cr 2 O 3 addition on the structure and dielectric, ferroelectric, and piezoelectric properties of the CNBT ceramics was further explored.…”

Enhanced piezoelectric performance in Na0.5Bi4.5Ti4O15‐based bismuth‐layered ceramics by Nb/Mn doping modification

“…[19][20][21][22][23] For example, Qin et al 24 gained the good piezoelectric properties (d 33 = 20 pC/N) of Na 0.5 Bi 4.5 Ti 4 O 15 ceramics by doping with Ce at the A-site to improve the activity of (A m-1 B m O 3m+1 ) 2perovskite layers. Chen and coworkers 25 obtained ceramics with good piezoelectric properties (T c = 690.2 • C, d 33 = 22 pC/N) by introducing Co 5+ in the B-site to increase the distortion of TiO 6 octahedral. These studies indicate that enhancing the distortion of TiO 6 octahedral is beneficial to enhance the piezoelectric properties of BLSF ceramics.…”